[dzhiurgis]

That’s a requirement if you build European energy grade A+++ house (which is a minimum in LT) - can’t just be pulling warm air out and replacing with cold one (idk maybe an HRV can compensate for it).

[throwthrowuknow]

Just breathing your own farts all day

[dzhiurgis]

I think HRV is also mandatory (plenty of old homes are retrofitted too).